Machine for making paper tubes



(No Model.) 7 SheetsShee=t 1 O. S. BIRD. MACHINE FOR MAKING PAPER TUBES.

No. 537,560. Patented Apr. 16, 189-5.

(No Model.)

7 Sheets-Sheet 2.

O. S.. BIRD. MACHINE FOR MAKING PAPER TUBES.

Patented Apr. 16, 1895.

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(No Model.) 7 Sheets-Sheet 3.

0. s. BIRD. MACHINE FOR MAKING PAPER TUBES.

No. 537,560. Patented Apr. 16, 1895.

(No Model.) 7 Sheets-Sheet 4.

G. S. BIRD. MACHINE FOR MAKING PAPER TUBES.

No. 537,560. Patented :1". 16,1895.

(No Model.) 7 Sheets-Sheefu 5.

O. S. BIRD. MACHINE FOR MAKING PAPER TUBES.

No. 537,560. Patented Apr. 16,.1895.

(No Model.) 7 Sheets-Sheen; 6.

O. S. BIRD.

MACHINE FOR MAKING PAPER TUBES. N0. 537,560. Patented Apr. 16, 1895.

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O. S. BIRD. MACHINE FOR MAKING PAPER TUBES.

1No. 537,560. Patented Apr. 16, 1895.

Unwrap TATES PATENT FFKCEs MACHINE FOR MAKING PAPE R TUBES.

SPECIFICATION forming part of Letters Patent No. 537,560, dated April16, 1895.

Application filed October 22, 1894. Serial No. 526.595. (No model.)

To aZZ whom, it may concern.-

Be it known that 1, CHARLES S. BIRD, a citizen of the United States ofAmerica, residing at Walpole, in the county of Norfolk and State of-Massachusetts, have invented new and useful Improvements in Machines forMaking Paper Tubes, of which the followin is a specification.

The object of this invention is to produce a machine which will mostrapidly and efficiently make paper tubes from sheets of paper fed intothe machine, and more particularly relates to the means for feeding thepaper.

properly to the pasting and then to the winding mechanism; to theimproved pasting mechanism; to the improved winding mechanism and tomeans whereby the completed tube will be discharged from the machine;and the invention furthermore relates to other improved features ofconstruction, all substantially as will hereinafter more fully appear. IThe machine of this invention is composed, in substance, of a feed tablefor the sheet of paper from which the tube is to be produced, feedrollers tothe rear thereof, and a gategage, paste rollers for applyingthe adhesive to the paper, feed and guide mechanism for carrying thepasted sheet to the winding mandrel, means for causing the edge of thepaper to immediately take its winding engagement with the mandrel, anautomatically and intermittently operating device for bearing on thepaper being wound to press the convolutions'closely together and toscrape off all excess of paste, and mechanism operative to effect thewithdrawal of the mandrel from the completed tube permitting thedischarge of the tube, together with means for intermittently causingthe separation of the feed rollers, the raising of the gate-gage and theseparation of the paste rollers, although it is not to be understoodthat the invention islimited to a machine necessarily comprising, atonce, all of the devices or mechanisms aforementioned, for the inventionconsists in certain various combinations or arrangements of devices andparts and the construction of certain of the devices and parts, allsubstantially as will be hereinafter fully described and set forth inthe claims.

-vation; and Figs. 0

Reference is to be had to the accompanying drawings, in which Figure 1is a planview of the improved machine. Fig. 2 is a rear eleand t areelevations at opposite ends of the machine. Fig. 5 is a vertical sectionof the machine taken from front to rear. Fig. 6 is a front elevation ofan upper part of the machine taken just to the rear of the feed tablelooking rearwardly. Fig. 7 is a sectional view through one of thewinding mandrels and the carrier therefor, and a part of the operatingmechanism therefor. Fig. 8 is across section on line 8-8, Fig.7. Figs.9,

-10 and 11 are views or diagrams in the nature of vertical crosssections to show the different relative positions of the parts whichdirectly operate upon the sheet of paper to produce the tube atdifferent stages of the tube forming action.

Similar characters of reference indicate corresponding parts in all ofthe views.

In the drawings, A represents the feed table at the forward part of themachine located at a convenient height, at the level and to the rear ofwhich are operative surfaces of the 7 feed rolls, 20, 22, the pastingrolls, 25, 24, and the winding mechanism comprising the mandrel, B, or,strictly speaking, as the machine is constructed, the two mandrels whichare in axial alignment and arranged and operated for intermittentendwise separation.

Of the two feed rolls, 20, 22, one, 22, is above and the other, 20,below the level of the infeed of the paper, while the vertically movablegage-gate, D, is next to the rear of these rollers; and the upper feedroll is intermit tentlyvertically movable so that when the gage-gateisin its lowered position, the sheet of paper may be freely slid by hand,so as to square it against the gate while the roller is elevated. Thenas the gate is raised, to permit the paper to be moved rearwardly, theupper feed roller is brought down to contact with its follow to insuresuch feed.

The upper feed roll, 22, has its gudgeons set in the verti callyelongated journal socket seen at 27 in Figs. 4 and 5, and its properlytimed intermittent movement is effected by which impinges one lever arm,32, of a rockshaft, 31, while to the other lever arm, 33, of suchrock-shaft, is connected the lower end of the thrust-rod, 34, the upperend of which has a lifting engagement with the one end gudgeon of theroller. This cam-actuated mechanism is duplicated for the manifestaction at each end of the roll.

The lower feed-roll is grooved circumferentially, as seen at 35, so thatthe horizontal supporting and guide-rods, 36, may have their positionsproperly below the plane of the contact between the feed-rolls. Thegage-gate, D, is apertured at its lower edge, as seen at 37, mostespecially in Fig. 6, so that its vertical movements will not beinterfered with by said rods which extend rearwardly beyond thegate-gage.

The gate-gage, which moves in slide-ways, 38, therefor at its ends, hasits vertical movements intermittently and in proper time impartedthereto by means, as followsz-The horizontal rock-shaft, 40, hasduplicated radial arms, 42, which are linked to the end portions of thegate. To another radial arm,43, of the rock-shaft is attached one end ofthe connecting rod, 44, which has its otherend secured to the lever, 45,which has the operalive engagement with the cam, 46. The support andguide-rods, 36, for the rearwardly fed sheet of paper are supported onthe horizontal bar, 47; and above these rods, 36, 36, and between thegate and the paste rolls, are a second shorter series of. rods, 48. 48,which are supported by the bar, 49. These rods serve to prevent thepaper from unduly curling up or wrinkling.

Of the two paste rolls, 23, 24, the lower one rotates with its lowerportion in the pastebox, 50, while the upper paste roll hasits endgudgeons journaled in boxes, 52, which by the spring, 53, are downwardlypressed. A lever-arm, 54, extended from. rock-shaft, 55, projects for alifting engagement under each upper paste-roll-journal. Said rock-shaftderives its rocking movement periodically by reason of the connectionwith its lever-arm, 56, of the thrust-rod, 57, which is subject to theaction of the cam, 58, which is most clearly seen in Fig. 4, and whichhas its prominent portion of but slight extent circum ferentially so asto only lift the upper paste-roll for a short period of time.

The reason for the lifting of the upper paste-roll which occurs justbefore the forward edge of the sheet of paper or tube-blank comes to theline of the contacting surfaces of the two rolls, is to avoid the undueaccumulation of paste at the throat of the rolls, whereby the front edgeportion of the paper would receive an excessive amount of the adhesive.Furthermore, the avoidance of the excess of paste at the throat permitsthe edge of the paper which is usually of reduced thickness to readilypass between the paste rolls. Between the paste rolls and the mandrelare the upper and lower sets of runners or supports and guide rods, 60,62, ranging horizontally fore and aft just below and above the level ofthe feed of the paper, they being supported on the transverse bars, 63,64, and also between the paste rolls and the mandrel is the series offeed disks or rollers, 65, allon the common shaft which is suitablyrotated.

The rotary winding mandrel is formed separable, that is in two lengths,B, B, arranged in a common line with theirendsin, or about in, abutment,and adapted to be moved axially away from each other each drawing outfrom the roll which had been wound thereon. The mandrel sections, B, B,are mounted to rotate and also to slide through bearingsupports of theframe of the machine,seen at 66 and 67. One of the bearing supports, 67,for each mandrel section has its journal opening larger than the mandrelfor the accommodation of the sleeve, 68, which surrounds such section,so that the sleeve may have its free rotation as imparted thereto by theengagement with the gear-wheel, 69, thereon, of other gearing, as seenin the end elevations, although of course the sleeves surrounding themaudrels may derive their continuous rotary movements in any othermanner. Each sleeve, 68, has the internal feather, 70, which engages inthe spline-groove, 72, of the mandrel section, B, so that while thesection will be continuously rotated by the rotary sleeve, 68, it mayhave its endwise movements independently of, and without impediment by,such sleeve.

The means here shown for imparting the endwise movement to the mandrelsections to periodically draw them endwise apartand then return them toendwise contact, or proximity, consists, as to each mandrel, of partsand arrangements as follows: The screwthreaded outer extremity of themandrel-section is passed loosely through the opening, 73 (Fig. 7) inthe upstanding member, 74, of a rack-bar, 75, which has slide bearingsupports horizontally in ways, 76, of the machine frame, below andparallel with the mandrel. The nuts, 77, 77, crew onto the said threadedportion of the mafdrel at each side of the upstanding member, 74, of therack-bar, so that, while the mandrel is free'to rotate independently ofthe member, 74, when the rackbar moves endwise, the mandrel mustcorrespondingly move. The lever, 78,corresponding to each mandrel, has alower portion thereof pivoted on the framing at 79, and has its upperextremity formed into the sectorgear, 80, which engages the rack-bar.Both of these sector-provided levers receive theirsimultaneous.movements thus, reference being particularly had to Fig. 2.The bar, or rod, 82, has one end secured to one of the levers, 78, andreceives reciprocatory movement by having the roller stud, 83, thereofengaging within the cam-slot, 84, of the disk, or wheel, 85, whichreceives its continuous rotary motion in any ordinary manner. The

one sector-lever, 78, has below its pivot the IOf IIC

III

extension arm, 86, with which is attached the connecting rod, 87, whichat its other end has a connection with the other sector-lever above thepivot thereof. Hence the two sector levers simultaneously have theirswinging movements toward and from each other.

Just to the rear, and with its axis a little below the sectionalmandrel, B, B, is a roll, G, having longitudinal outstanding flexibleblades, 90, 90, which may be of rubber. This bladed roll is journaled inslide blocks, 92, 92, (Fig. 2) movable in ways of the frame, so that theroll may intermittently be broughttolap or impinge against the mandrel,or, rather, against the forward edge of the paper, just as it reachesthe mandrel, for the purpose of causing the forward edge of thesurfacepasted paper to immediately take its winding engagement with themandrel. The movements of the carrier slides for this bladed roll areimparted by the attachment to each end of the arbor of the bladed rollof a connect- .ing-rod, 93, each of which is also connected 'to an arm,94, of rock-shaft, 95, to another arm, 96, of which rock-shaft isconnected the thrust-rod, 97, which derives its reciprocatory movementsin the proper time by the cam, 98.

The bladed roll, G, is so speeded that the blades thereof have theirrevoluble movements faster than the circumferential motion of themandrel. Hence the paper will be wiped with absolute certainty againstthe mandrel.

As here shown as a means for effecting the relative speeding of thewiper roll and the mandrel, specified, the counter-shaft, C is driven bybelt and pulley from the main shaft, 0. Now the mandrel has impartedthereto its given rotation at the proper rapidity by the pulley, B onthe counter-shaft, C the belt, B passing around said pulley, B andaround the pulley, B on the shaft, 13 which has thereon the gear-wheel,B, that meshes into the pinion, B on the mandrel. The bladed roll orwiper, G, has on its end the small pulley, G and the counter-shaft, Ghas thereon the much larger pulley, G around both of which pass thedriving band, G Therefore it will be plain that as the diameter of thepulley, G is so much greater than that of the one, G and soproportionately greater than the diameter of gear-wheel, 13, relative topinion, B on the mandrel, that the greater rapidity of speeding of thewiper is required. This result may of course be insured by divers othermechanical means which would not be matters of invention,but of ordinarymechanical expedients.

About simultaneously with the coaction with the mandrel of the bladedroll, G, the presser and scraper-bar or blade, 100, is moved to contactagainst the convolutions of the paper as they are being wound to insurefirmness and closeness of winding, and also the removal of excessivequantities of paste. This presser and scraper blade is carried by a bar,102, which is arranged to-have sliding movements transversely of itslength diagonally, rearwardly and upwardly above and relative to thepaste-box, 50.

103 represents the slide-ways for the bar, 100, and-the bar derives itsmovements of presentation against, and withdrawal from, the mandrel byreason of the link-connection therewith of the arm, 104:, of therock-shaft, 105, which is operated by the thrust-rod, 106, which latterreceives itsimpulse from the cam, 107. By reason of the position andinclination of the said presser and scraper-bar, 100, relative to thepaste-box any excess of paste of which the paper tube is relieved runsback into the paste-box.

The operation and effect of the machine is rendered manifest in and bythe descriptions and explanations hereinabove given, and are renderedstill clearer by reason of the drawings on Sheet 7, in which- Fig. 9shows, while one paper blank is being wound on the mandrel with theblade-roll, G, and the scraper in operative proximity thereto, thepaste-rolls, 23, 24, are running in peripheral contact whereby the upperroller also'receives its coating of paste from the lower roll, thegage-gate is in its lower position so that the next paper blank may besquared, and at this time the upper feed roll, 22, is lifted so thatthepaper may be properly squared against the gate.

Fig. 10 shows the relative positions of the parts when the sections ofthe mandrel are separated to insure the discharge of the completedtube,-the bladed-roll and scraper, 100, being carried out of theirpositions for contact with the mandrel, and the gate-gage is raised, theupper feed-roll, 22, is lowered to feed the paper-blank to and betweenthe gum rolls, the upper one of which, just as theforward edge of theblank comes thereunder, is also raised,-such upper g'um roll descending,however, immediately the edge of the blank has fairly come under itslower central portion so that the extreme edge of such blank receivespaste as well as all the rest of the superficial area of both sidesthereof.

Fig. 11 showsthe substitution for the bladed upper roll, G, of abrush-roll, G which may perform the same function.

In practice, the distance between the pasterolls and winding mandrel issomewhat less than the width of the blank from which the tube is to beformed. Therefore the paper which has been squarely fed between thepasterolls has a portion thereof still between such rolls at andsomewhat after the instant thatthe forward edge of the paper is wipedsplinegroove, '72. Therefore, as the mandrels separate for theirwithdrawal from the completed tube no vacuum will be produced within thetube to collapse it, or to cause it to unduly adhere upon the mandrel.

It will be here mentioned that in the event of the paper tube having atendency to remain on the one mandrel section while the other iswithdrawn therefrom, it will, by having its end brought against thebearing support, 66, be prevented from moving endwise with the firstmandrel section, so that the latter may also be drawn out therefrom.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is-

1. In a machine for making paper tubes, the combination with a rotarywinding mandrel, of a rotary wiper having applied thereto, means forpositively imparting a speed which is circumferentially different fromthat of the mandrel, and means for imparting, periodically, areciprocatory movement to the rotary wiper, transversely of the lengththereof and of the mandrel, substantially as described.

2. In apaper tube machine in combination, a pair of feed rolls, agage-gate to the rear thereof, the paste rolls and a rotary windingmandrel, and means for periodically lifting one of the feed rolls fromits fellow and permitting it to return and means for lifting the gate onsuch return of the feed roll, substantially as described.

3. In a paper tube machine, the combination with the winding mandrel,the paste box, the paste rolls and feeding mechanism for carrying thepaper to the mandrel, of the pressure and scraper blade, 100, having aposition to bear against the paper being wound on the mandrel andarranged above and with a downward inclination toward the paste-box,substantially as and for the purposes set forth.

4. In a paper tube machine, the combination with the winding mandrel andpairs of feed and paste rolls, for running the paper toward the mandrel,the lower one of the feedrolls being circumferen tiallygrooved,thehorizontal rods extending fore-and-at't in a plane below the level ofthe contacting surfaces of said rolls, and having their forwardextremities lying within the said peripheral grooves, the gage-gatebetween the feed and paste rolls, adapted to be raised and lowered andhaving its lower edge apertured to accommodate said rods, and means forintermittently operating the gate, substantially as described.

5. In a paper tube machine, the combination with a rotary windingmandrel of the r0- tary wiper roll, slide supports in which it isjournaled, a rotary cam and a medium of connection between the cam andsaid slide-supported wiper-roll for imparting intermittently thereto itsmovements sidewise toward and then away from the mandrel, substantiallyas described.

6. In apaper-tube machine,in combination, a winding mandrel and a pairof rotary feedrolls for feeding the paper toward the mandrel, the upperone of which is journaled for vertical movements away from and towardits fellow, a gage-gate t0 the rear of the feed roll, and means forintermittently raising it, and the duplicated mechanism consisting ofthe cam, 30, the rock-shaft, 31, with the lever arms, 32 and 33, and thethrust-rod connected to said lever, 33, and havingalifting engagementwith one of the journals of the said movably mounted feed roll,substantially as described.

7. In a paper tube machine, the combination with a winding-mandrel, andfeed and paste rolls, the upper one ofthe feed rolls being verticallymovable and means for intermittently vertically moving it-,-of thevertically movable gage-gate between the feed and paste rolls, therock-shaft, 40, having the lever arm connected to the gate, and havingthe arm, 43, the thrust-rod, 44, connected to the latter arm and a cam,46, for impelling said thrust-rod, substantially as described.

8. In a paper tube machine, the combination with a winding mandrel andthe two paste rolls, for the upper one of which are provided verticallymovable journals, of the rock-shaft, 55, having the lever-arms whichhave a lifting engagement with said paste roll journals, the lever-arm,56, projecting from said rockshaft, the cam, 58, and the thrust-rod, 57,operated by the said cam and engaging the said rock-shaft-arm, 56,substantially as described.

9. In a paper tube machine, the combination with a winding mandrel, anda pair of paste-rolls, of a presser and scraper blade and a carriertherefor which has movements toward and from the mandrel, therock-shaft, 105, provided with the lever arm, 104, which is linked tosaid blade-carrier, the cam, 107, and thrust-rod, 106, operated therebyand connected to the said arm, 104, substantially as described.

CHARLES S. BIRD.

Witnesses:

WM. S. BELLows, K. I. OLEMoNs.

